package cjq.demo.thread.ch4_8;

import java.util.Date;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;

/**
 * Created by Administrator on 2016/4/30.
 */
public class Main {
    public static void main(String[] args) {
        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
        System.out.println("Main: Starting at: "+ new Date());

        Task task = new Task("Task");

        ScheduledFuture<?> result = executor.scheduleAtFixedRate(task,1,2, TimeUnit.SECONDS);

        for (int i = 0; i < 10; i++) {
            System.out.println("Main: Delay : "+result.getDelay(TimeUnit.MILLISECONDS));
            try{
                TimeUnit.MILLISECONDS.sleep(500);
            }catch(InterruptedException e){
                e.printStackTrace();
            }

        }

        executor.shutdown();

        try{
            TimeUnit.SECONDS.sleep(5);
        }catch(InterruptedException e){
            e.printStackTrace();
        }

        System.out.println("Main : Finished at : "+ new Date());
    }
}
